First published in 1939, this story for readers 4 to 6 from the author of Goodnight Moon follows "one dirty little boy," as he asks his busy mother to give him a bath. Instead she suggests he go look at how the animals clean themselves. But what works for a bird, a horse, or a cat—or most especially, a pig—is not quite so effective for a boy, and soon his mother has plopped him into the washtub. With his elegant swooping ink lines and simple vivid colors, illustrator Steven Salerno gives this book a charming style reminiscent of classic children's books from the mid-20th century.